CN219862831U

CN219862831U - Inclined support supporting component and supporting structure

Info

Publication number: CN219862831U
Application number: CN202320502571.XU
Authority: CN
Inventors: 李文兵; 王德亮; 徐唯唯
Original assignee: Suzhou Construction Engineering Supervision Co ltd
Current assignee: Suzhou Construction Engineering Supervision Co ltd
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2023-10-20
Anticipated expiration: 2033-03-15

Abstract

The utility model belongs to the field of buildings, in particular to an inclined support supporting component and a supporting structure, which comprise grouting steel pipes, grouting heads and an enclosure structure, wherein a plurality of grouting holes are formed in the peripheral wall of each grouting head, and short ribs matched with the grouting steel pipes are preset on a capping beam of the enclosure structure; when the grouting head is inserted into the ground, the included angle between the grouting steel pipes and the ground is 45-60 degrees, and the top ends of at least two grouting steel pipes are jointly connected with the capping beam of the enclosure structure, the utility model solves the problems that after the existing diagonal bracing support assembly is inserted into the ground, the air in the diagonal bracing support assembly can not be completely discharged by the concrete injected into the diagonal bracing support assembly, so that a cavity is not reserved, and the support strength can not be ensured.

Description

Inclined support supporting component and supporting structure

Technical Field

The utility model belongs to the field of buildings, and particularly relates to an inclined support assembly and a support structure.

Background

Under the condition of limited land red lines, small foundation pit depth and large foundation pit area, the vertical diagonal bracing system is adopted, so that earth excavation is facilitated, the construction period is shortened, and the construction cost is saved. However, after the common diagonal bracing support assembly is inserted into the ground, the concrete injected into the diagonal bracing support assembly cannot be guaranteed to discharge all air in the diagonal bracing support assembly and further leave no cavity, so that the process is always completed on the ground when concrete is poured into the diagonal bracing support assembly, the structural bottom plate of the foundation pit is used as a reliable supporting stress point in the mode, the diagonal bracing is required to be constructed after the structural bottom plate reaches the design strength, and the construction method can cause serious delay in the subsequent construction period. Meanwhile, the exposure time of the inclined support supporting foundation pit is longer, maintenance is needed for a longer time after the construction of the bottom plate of the central island, a certain time is needed for the installation of the inclined support, the deformation of the inclined support in the slope laying and excavation stage is larger, and the surrounding environment is protected disadvantageously.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and designs an inclined support assembly by adopting a mode that a grouting head with a plurality of grouting holes on the side wall is matched with a grouting steel pipe, so that after the grouting steel pipe and the grouting head are coaxially welded and integrally inserted into the ground, the air in the inclined support assembly is completely discharged by the concrete injected into the inclined support assembly so as to leave no cavity, thereby ensuring the support strength, and solving the problems that the existing inclined support assembly cannot ensure that the air in the inclined support assembly is completely discharged by the concrete injected into the inclined support assembly so as to leave no cavity and the support strength cannot be ensured after the existing inclined support assembly is inserted into the ground.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a bearing diagonal support subassembly, includes slip casting steel pipe, slip casting head, envelope, be equipped with a plurality of slip casting holes on the perisporium of slip casting head, preset on envelope's the capping piece with slip casting steel pipe complex short muscle.

Preferably, angle iron barbs are arranged on the outer side wall of the grouting head at each grouting hole.

Preferably, the projection of the angle iron barbs on the cross section of the grouting head is plum blossom-shaped.

Preferably, the diameter of the grouting steel pipe is 377mm, and the thickness is 10mm.

Preferably, the diameter of the grouting head is 377mm, and the thickness is 10mm.

Preferably, when the enclosure structure is connected with the grouting steel pipes and the grouting heads, a plurality of short ribs are arranged on the top beam of the enclosure structure around each grouting steel pipe, and the distance between two longitudinally adjacent short ribs on the same grouting steel pipe is 150mm.

The inclined support supporting structure comprises the inclined support supporting component, one end of the grouting steel pipe is welded with the grouting heads coaxially, concrete is filled in the grouting steel pipe and the grouting heads, when the grouting heads are inserted into the ground, the included angle between the grouting steel pipe and the ground is 45-60 degrees, and the top ends of at least two grouting steel pipes are connected with a capping beam of the enclosure structure jointly.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, a mode that the grouting heads with the grouting holes on the side walls are matched with the grouting steel pipe is adopted, so that the inclined support supporting component is designed, the problem that after the grouting steel pipe and the grouting heads are coaxially welded and integrally inserted into the ground, the concrete injected into the inclined support supporting component completely discharges air in the inclined support supporting component and further leaves no cavity, so that the supporting strength is guaranteed, and the problem that the existing inclined support supporting component cannot guarantee that the concrete injected into the inclined support supporting component completely discharges air in the inclined support supporting component and further leaves no cavity after being inserted into the ground, and the supporting strength cannot be guaranteed is solved.

2. The angle iron barbs provided by the utility model enable soil on the side wall of the drilled hole not to enter the grouting head in the process of extending the grouting head into the drilled hole.

3. The short ribs serve as shear keys, so that the shearing bearing capacity of the grouting steel pipe is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view taken along plane 1-1 of FIG. 1;

FIG. 3 is a top view of the enclosure in connection with a grouting steel pipe;

FIG. 4 is a schematic view of the structure of the 2-2 plane in FIG. 3.

Wherein: 1. grouting a steel pipe; 2. a grouting head; 3. a building envelope; 4. grouting holes; 5. short ribs; 6. angle iron barbs.

Detailed Description

Referring to fig. 1-4, an inclined support supporting component comprises a grouting steel pipe 1, a grouting head 2 and an enclosure structure 3, wherein a plurality of grouting holes 4 are formed in the peripheral wall of the grouting head 2, and short ribs 5 matched with the grouting steel pipe 1 are preset on a capping beam of the enclosure structure 3.

In this embodiment, during the use, firstly bore holes in the ground for the contained angle between the axis of the hole that bores and the ground is at 45 degrees ~ 60 degrees, and guarantee that the internal diameter of the hole that bores is greater than the external diameter of slip casting head 2, then stretch into the hole that bores with slip casting head 2 in, later through slip casting steel pipe 1 and slip casting head 3 to the downthehole concrete that bores, owing to be equipped with a plurality of slip casting holes 4 on the perisporium of slip casting head 1, make the air in the slip casting head 2 can discharge through slip casting hole 4 like this, simultaneously, the concrete in the slip casting head can reach in the hole that bores through slip casting hole 4 for the concrete wraps up slip casting head 2, just so just solved current diagonal support subassembly after inserting ground, can't guarantee that the concrete that pours into the diagonal support subassembly will all discharge and then leave the cavity with the air in the diagonal support subassembly, and then can't guarantee the problem of supporting intensity.

As a preferred way, angle iron barbs 6 are provided on the outer side wall of the grouting head 2 at each of the grouting holes 4. By providing angle iron barbs 6, soil on the side walls of the drilled holes will not enter the grouting head 2 during the process of extending the grouting head 2 into the drilled holes.

Preferably, as shown in fig. 2, the projection of a plurality of angle iron barbs 6 on the cross section of the grouting head 2 is plum blossom-shaped. The purpose of this arrangement is to make the grouting holes 4 evenly distributed on the grouting steel pipe 1, and then make the concrete in the grouting steel pipe 1 flow out to the periphery of the grouting steel pipe 1 under the action of the grouting holes 4.

Preferably, the diameter of the grouting steel pipe 1 is 377mm, and the thickness is 10mm.

Preferably, the diameter of the grouting head 2 is 377mm, and the thickness is 10mm.

Preferably, as shown in fig. 4, when the enclosure structure 3 is connected with the grouting steel pipes 1 and the grouting heads 2, a plurality of short ribs 5 are arranged around each grouting steel pipe 1 on the capping beam of the enclosure structure 3, and the distance between two adjacent short ribs 5 longitudinally on the same grouting steel pipe 1 is 150mm. The short ribs 5 are used as shear keys to improve the shearing bearing capacity of the grouting steel pipe 1.

The utility model also provides an inclined support structure, which comprises the inclined support assembly, wherein one end of the grouting steel pipe 1 is coaxially welded with the grouting head 2, the grouting steel pipe 1 and the grouting head 2 are filled with concrete, when the grouting head 2 is inserted into the ground, the included angle between the grouting steel pipe 1 and the ground is 45-60 degrees, and the top ends of at least two grouting steel pipes 1 are jointly connected with a capping beam of the enclosure structure 3. When the concrete grouting device is used, after the strength of concrete solidification reaches the design requirement, a foundation pit is excavated, after the elevation of a structural cushion layer is excavated, a reinforcement cushion layer with the size of 1500x1500mm and the thickness of 200mm is poured on the periphery of the grouting steel pipe 1, and the reinforcement cushion layer is used for fixing the grouting steel pipe 1 and the grouting head 2, so that disturbance to the grouting steel pipe 1 in the construction process is reduced. And a water stop steel sheet with the thickness of 6mm is welded at the middle position of the bottom surface of the foundation pit and is used for preventing water at the joint of the bottom surface of the foundation pit and the grouting steel pipe 1. And pouring the bottom surface of the foundation pit, pouring a water stop steel sheet in the bottom surface of the foundation pit, cutting off the grouting steel pipe 1 on the bottom surface of the foundation pit after the strength of the bottom surface of the foundation pit meets the design requirement, removing the filler in the grouting steel pipe 1, welding a 6mm thick oval steel plate on the inner side of the grouting steel pipe 1, arranging water expansion water stop strips 20x30mm around the welding, and finally sealing holes by adopting micro-expansion concrete to form a comprehensive waterproof system.

Claims

1. The inclined support supporting component is characterized by comprising a grouting steel pipe (1), a grouting head (2) and an enclosure structure (3), wherein a plurality of grouting holes (4) are formed in the peripheral wall of the grouting head (2), and short ribs (5) matched with the grouting steel pipe (1) are preset on a capping beam of the enclosure structure (3).

2. A diagonal bracing assembly according to claim 1, wherein the outer side wall of the grouting head (2) is provided with angle iron barbs (6) at each grouting hole (4).

3. A diagonal bracing assembly according to claim 2, wherein the projection of a number of said angle iron barbs (6) onto the cross section of the grouting head (2) is quincuncial.

4. A diagonal bracing assembly according to claim 1, wherein the grouting steel pipe (1) has a diameter of 377mm and a thickness of 10mm.

5. A diagonal bracing assembly according to claim 1, wherein the grouting head (2) has a diameter of 377mm and a thickness of 10mm.

6. The diagonal bracing support assembly according to claim 5, wherein when the enclosure structure (3) is connected with the grouting steel pipes (1) and the grouting heads (2), a plurality of short ribs (5) are arranged on a top beam of the enclosure structure (3) around each grouting steel pipe (1), and the distance between two longitudinally adjacent short ribs (5) on the same grouting steel pipe (1) is 150mm.

7. The diagonal bracing supporting structure is characterized by comprising the diagonal bracing supporting component disclosed in claim 6, one end of each grouting steel pipe (1) is coaxially welded with each grouting head (2), concrete is filled in each grouting steel pipe (1) and each grouting head (2), when each grouting head (2) is inserted into the ground, an included angle between each grouting steel pipe (1) and the ground is 45-60 degrees, and top ends of at least two grouting steel pipes (1) are jointly connected with a capping beam of the enclosure structure (3).